<!DOCTYPE html>
<html>
<head lang="en">
    <meta charset="UTF-8">
    <title>demo</title>
    <script src="build/build.js"></script>
    <link rel="stylesheet" href="build/style.css"/>
</head>
<body>
    <div class="mark">
        55555666
    </div>
    <div class="mark">
        55555666
    </div>
    <div class="mark">
        55555666
    </div>
    <div class="mark">
        55555666
    </div>
    <div class="mark">
        55555666
    </div>
</body>
</html>